EP0824420A1 - Air-bag module - Google Patents

Air-bag module

Info

Publication number
EP0824420A1
EP0824420A1 EP96910899A EP96910899A EP0824420A1 EP 0824420 A1 EP0824420 A1 EP 0824420A1 EP 96910899 A EP96910899 A EP 96910899A EP 96910899 A EP96910899 A EP 96910899A EP 0824420 A1 EP0824420 A1 EP 0824420A1
Authority
EP
European Patent Office
Prior art keywords
profile
gas generator
airbag module
grooves
module according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96910899A
Other languages
German (de)
French (fr)
Other versions
EP0824420B1 (en
Inventor
Roland Marx
Egon Schlett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Petri AG
Original Assignee
Petri AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Petri AG filed Critical Petri AG
Publication of EP0824420A1 publication Critical patent/EP0824420A1/en
Application granted granted Critical
Publication of EP0824420B1 publication Critical patent/EP0824420B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/217—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together

Definitions

  • the invention relates to an airbag module according to the preamble of claim 1.
  • this cover is fastened with rivets to a carrier on which the gas generator and the gas bag are also arranged.
  • the gas generator and the gas bag are attached to a box-shaped support. Nuts or screws are attached to the bottom of the carrier with which the airbag module can be connected to the vehicle.
  • the cover is attached to the side walls of the box-shaped carrier with rivets. While the cover is made of plastic, the box-shaped support is made of aluminum or steel.
  • the known fastening of the cover has numerous disadvantages both in terms of its mechanical properties and during assembly.
  • the selective fastening of the plastic cover by rivets can lead to cracks and breaks at the connection points if the connection points are subjected to permanent stress. So that the stress on an individual rivet does not become excessive, a large number of rivets must be attached to the cover around the side walls.
  • the assembly of the known Covering on the carrier is therefore extremely labor-intensive and extensive manufacturing systems are required for the assembly.
  • the known fastening method also makes recycling of the cover and the carrier much more difficult.
  • the rivet connection cannot be released without expensive aids. To separate the materials, the rivets, the cover and the carrier must be cleanly separated from one another.
  • the invention is therefore based on the object of creating an airbag module which can be attached in a simple manner to a location provided for this purpose. Furthermore, recycling of the materials used should be made possible by easy removal of the airbag module.
  • the cover has means for fastening which can be connected at least partially in a form-fitting manner to the assembly supporting the gas generator.
  • a cover can simply be attached to the assembly carrying the gas generator or the gas generators and also removed again.
  • the cover preferably has profiled sections, to which recesses are assigned in the assembly carrying the gas generator, in which recesses the profiled sections can be inserted in a lockable manner. Profiles that can be inserted into the recesses can be provided as a lock.
  • a cover cap is provided as a cover, which has resilient webs with bead-like reinforcements on at least two opposite sides, to which grooves are assigned in a flat gas generator carrier, which have a hollow profile adapted to the bead cross section on one side and wider than that are respective webs and that for the locking of the webs with the module carrying the gas generator, insertable profile strips are provided, to which a corresponding hollow profile is assigned in the grooves.
  • the webs are preferably provided in the form of side walls of the cover cap.
  • a plate-shaped gas generator support with two U-shaped profile grooves provided on opposite narrow sides is preferably arranged as an assembly that supports the gas generator. Furthermore, two resilient webs of the cover cap which reach into the profile grooves are provided, the U-profiles in sections having bead-like reinforcements to which bead-like reinforcements on the webs are assigned. In one embodiment, the profile strips have continuous bead-shaped reinforcements which can be pushed into the profile grooves in the longitudinal direction and to which bead-like reinforcements in the profile grooves are assigned.
  • two opposite webs of the cover cap are inserted into the profile grooves. Because of the resilient webs, the bulge-like reinforcements of the webs engage behind the bulge-like reinforcements of the profile grooves in the manner of a snap lock. To secure the snap connection, the profile strips are then inserted lengthways into the profile grooves.
  • the grooves or U-profiles have openings in their base in the region of the bead-like reinforcements provided in sections. At a distance from the openings, profile elements are provided which can be inserted into the profile grooves through the openings transverse to the groove profile. These profile elements secure the connection between the cover cap and the gas generator support.
  • the profile elements are provided on the securing strips at the spacing of the openings.
  • the profile elements can be pushed into the profile grooves through the openings and can be moved together with the securing strips in the inserted position in the longitudinal direction of the profile grooves.
  • the profile elements are each connected at one end to the securing strip and then the profile elements run at a distance from the securing strip, the distance corresponding at least to the thickness of the bottom of the profile grooves.
  • the gas generator carrier has profile grooves with openings in the bottom of the profile grooves on all narrow sides. Through the openings, profile elements can be inserted into the profile grooves, which are provided on a ring.
  • the cover cap can be locked on two opposite sides by means of profile strips with the gas generator support and on two sides running perpendicular to these sides it is connected to the gas generator support by means of plug-in closures.
  • the plug-in closures are designed such that snap elements with lips are provided on the cover cap, to which slots with plastically deformable webs are assigned on the gas generator support, the lips having a greater width than the slots with undeformed webs.
  • This airbag module according to the invention has the advantage that its cover is both easy to assemble and easy to disassemble. This saves manufacturing costs and makes it easier to recycle the airbag material when it is discarded.
  • the profile grooves of the gas generator support have a contour in at least one dimension which deviates from the straight line. This prevents the profile strips from slipping out of the profile grooves to an increased extent.
  • the gas generator carrier is preferably a die-cast or injection molded part.
  • FIG. 3 shows a sectional perspective view of the first embodiment of the assembled airbag module; 4: a second embodiment of the airbag module module according to the invention in an exploded view;
  • FIG. 5 shows an enlarged perspective view of a detail of the carrier shown in FIG. 4;
  • the airbag module shown in FIG. 1 has a gas generator 1 and a gas bag 2 shown broken, both of which are assigned to a gas generator carrier 3.
  • the gas generator carrier 3 has a profile groove 6 on two opposite sides. On the two opposite sides, which lie transversely to the sides with the profile grooves 6, the gas generator carrier 3 has two slots 5, on one side of which plastically deformable webs 5a (Fig. 2a) are provided.
  • the gas generator carrier 3 is also assigned a cover cap 4, each of which has two plug-in elements 9 on two opposite walls, which are assigned to the slots 5 of the gas generator carrier 3.
  • Each plug element 9 is provided with a lip 9a.
  • the cover On its two side walls 10, which lie transversely to the sides with the plug-in elements 9, the cover has a bead-shaped profile 8, which is assigned to a profile groove 6 of the generator support 3.
  • the section of the generator carrier 3 shown in FIG. 2a shows the profile groove 6 enlarged.
  • This has a cross-sectional shape which corresponds to a flattened "O" which is open at the top, so that the profile groove has hollow profile-like widenings 6a, 6b opposite the open side of the groove.
  • the hollow profile-like extension 6a corresponds to the bead-shaped profile 8.
  • a profile strip 7 is provided in each case, which has a bead-like reinforcement 7a in cross section on one side and a flat side 7b on the opposite side.
  • the profile bar 7 can be inserted with its flat side 7b into the profile groove 6 adjacent to the flat side of the profile 7 of the cover 4.
  • the cover cap 4 is mounted in such a way that after the installation of the gas generator 1 and the gas bag 2 on the gas generator carrier 3, the latter is placed on the carrier 3 such that the plug elements 9 lie over the slots and the side walls 10 over the Profile grooves 6 lie.
  • the lips 9a of the plug-in elements 9 are inserted into the slots 5.
  • the webs 5a are plastically deformed after the insertion of the lips 9a. Since the slots are narrower than the lips 9a when the webs 5a are not deformed, the cover cap 4 is connected to the generator carrier 3 in a form-fitting manner.
  • the side walls 10 of the cover cap 4 are elastically bent outwards when they are pressed against the gas generator carrier 3 until they snap into the hollow profile-like widenings 6a and bear against them with their bead-shaped profile 8.
  • a positive connection between the cover cap 4 and the gas generator carrier 3 is thus also present on these sides.
  • the profile strips 7 are then inserted into the profile grooves 6.
  • the gas bag module is shown in a cut perspective view in the assembled state.
  • the gas generator 1, the gas bag 2 and the cover cap 4 are arranged on the gas generator support 3.
  • the bead-shaped profiles 8 of the side walls 10 rest on the hollow profile-like widenings 6a.
  • Each profile bar 7 rests on the one hand with its bead-like reinforcement 7a the hollow profile-like widening 6b and on the other hand on one of the side walls 10. This makes it impossible to lift the cover cap 4 off the gas generator support 3.
  • the second embodiment of the airbag module according to the invention shown in FIG. 4 again has the gas generator 1 and the gas bag 2 shown broken, both of which are assigned to a gas generator carrier 13.
  • This has a U-shaped profile groove 16 on each of its four sides.
  • a cover cap 14 is also assigned to the gas generator carrier 13.
  • bead-shaped profiles 18 are provided, which are assigned to the profile grooves 16 of the gas generator carrier 13.
  • the section of the gas generator carrier 13 shown in FIG. 5 shows the U-shaped profile groove 16 enlarged.
  • the profile groove 16 has openings 12 at regular intervals on its underside in the direction of the gas generator 1 shown in FIG. 4.
  • the profile grooves 16 have bead-like reinforcements 15 in the areas of the openings 12. These reinforcements cause a narrowing of the U-shaped profile groove 16, so that in these areas it has a cross section similar to that of the profile groove 6 in the first exemplary embodiment.
  • the openings 12 of the profile groove 16 are associated with profile elements 17 which are attached to a ring 11.
  • the attachment of the cover cap 14 to the gas generator support 13 can be seen in FIG. 6. 6 shows the gas bag module in a cut perspective view in the assembled state.
  • the gas generator 1, the gas bag 2 and the cover cap 14 are arranged on the gas generator carrier 13.
  • the bead-shaped profiles 18 of the cover 14 are located in the profile groove 16 of the gas generator carrier 13.
  • the ring 11 can be held in its position by various measures. That can e.g. B. by gluing, by engaging not shown locking lugs in holes in the generator support or by caulking pins in holes in the ring.
  • FIG. 7 shows a perspective view of a gas generator carrier 23 of a third embodiment of the airbag module according to the invention.
  • the gas generator support 23 has a profile groove 26 with openings 22 on two opposite sides, in the area of which the profile groove 26 has bead-like reinforcements 27. Transversely to the sides with profile grooves 26 there are two slots 25 on each of the two sides.
  • the connection of the cover cap (not shown) and the arrangement of the other parts of the gas bag module are carried out in accordance with the preceding embodiments.
  • the slots 25 are assigned plug-in elements of the cover cap.
  • Profiles of the cover cap are assigned to the profile grooves 26. The difference from the embodiment in FIGS. 4 to 6 is the securing of the connection between the cover cap and the gas generator support 23.
  • the securing is carried out by means of securing strips 21 which have profile elements 24.
  • the profile elements 24 are connected at one end to the fuse strip 21, while in the remaining area they run at a distance from the fuse strip 21. This distance corresponds at least to the thickness of the bottom of the profile groove 26.
  • the profile elements 24 are inserted through the openings 22 into the profile grooves 26.
  • the securing strips are then moved in the longitudinal direction of the profile grooves 26, as a result of which the bottom of the profile groove 26 then extends between the profile elements 24 and the securing strip 21.
  • FIG. 4 a perspective view of a gas generator carrier 33 is shown in FIG.
  • the gas generator support 33 is provided on two opposite sides each with a profile groove 36, which have bead-like reinforcements 34 on their side walls at intervals. Transversely to the sides with the profile grooves 36 there are two slots 35 on each of the two sides.
  • Plug-in elements of the cover are assigned to the slots 35.
  • 36 profiles of the cover are assigned to the profile groove.
  • the profiles of the Cover. Are fixed with a profile strip 37, which is inserted into the profile groove 36 of the gas generator support 33.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

The invention relates to an air-bag module with a gas bag (2), at least one gas generator (1) to inflate it and a cover (4; 14) and deals with the problem of fitting a cover (4; 14) of an air-bag module to a generator support more easily. According to the invention, the cover (4; 14) can be at least partly positively engaged with the gas generator support (3).

Description

Airbagmodul Airbag module
Beschreibungdescription
Die Erfindung betrifft ein Airbagmodul nach dem Oberbe¬ griff des Anspruchs 1.The invention relates to an airbag module according to the preamble of claim 1.
Es ist bekannt, Airbagmodule in einem Kraftfahrzeug einzu¬ bauen, um die Insassen bei einem Unfall des Kraftfahrzeuges mit Hilfe eines durch einen Gasgenerator automatisch aufge¬ blasenen Kissens vor Verletzungen zu schützen. Diese Airbagmodule werden in einem Kraftfahrzeug mit einer Abdeckung versehen. Damit ist das Airbagmodul einerseits vor Beschädigungen geschützt, die eine Gefahr für die Funktionssicherheit des Airbagmoduls darstellen können, und andererseits kann die Abdeckung der ästhetischen Ausgestal¬ tung des Fahrzeuginnenraums angepaßt werden.It is known to install airbag modules in a motor vehicle in order to protect the occupants from injuries in the event of a motor vehicle accident using a cushion that is automatically inflated by a gas generator. These airbag modules are provided with a cover in a motor vehicle. This protects the airbag module from damage on the one hand, which can pose a risk to the functional safety of the airbag module, and on the other hand the cover can be adapted to the aesthetic design of the vehicle interior.
Bei bekannten Airbagmodulen wird diese Abdeckung mit Nieten an einem Träger befestigt, auf dem auch der Gasgenerator und der Gassack angeordnet sind.In known airbag modules, this cover is fastened with rivets to a carrier on which the gas generator and the gas bag are also arranged.
Bei der Montage des bekannten Airbagmoduls wird der Gasgene¬ rator und der Gassack auf einem kastenförmigen Träger befestigt. Im Boden des Trägers sind Muttern oder Schrauben angebracht, mit denen das Airbagmodul mit dem Fahrzeug verbunden werden kann. Die Abdeckung wird mit Nieten an den Seitenwänden des kastenförmigen Trägers befestigt. Während die Abdeckung aus Kunststoff besteht, ist der kastenförmige Träger aus Aluminium oder Stahl hergestellt.When assembling the known airbag module, the gas generator and the gas bag are attached to a box-shaped support. Nuts or screws are attached to the bottom of the carrier with which the airbag module can be connected to the vehicle. The cover is attached to the side walls of the box-shaped carrier with rivets. While the cover is made of plastic, the box-shaped support is made of aluminum or steel.
Die bekannte Befestigung der Abdeckung weist sowohl in ihren mechanischen Eigenschaften als auch bei der Montage zahlreiche Nachteile auf. Die punktuelle Befestigung der aus Kunststoff bestehenden Abdeckung durch Nieten kann bei dauerhafter Beanspruchung der Verbindungsstellen zu Rissen und Brüchen an den Verbindungsstellen führen. Damit die Be¬ anspruchung einer einzelnen Niete nicht übermäßig groß wird, müssen rund um die Seitenwände sehr viele Nieten an der Abdeckung angebracht werden. Die Montage der bekannten Abdeckung auf dem Träger gestaltet sich daher äußerst arbeitsintensiv und es werden umfangreiche Fertigungsanla¬ gen für die Montage benötigt.The known fastening of the cover has numerous disadvantages both in terms of its mechanical properties and during assembly. The selective fastening of the plastic cover by rivets can lead to cracks and breaks at the connection points if the connection points are subjected to permanent stress. So that the stress on an individual rivet does not become excessive, a large number of rivets must be attached to the cover around the side walls. The assembly of the known Covering on the carrier is therefore extremely labor-intensive and extensive manufacturing systems are required for the assembly.
Auch eine Wiederverwertung der Abdeckung und des Trägers wird durch die bekannte Befestigungsmethode wesentlich erschwert. Die Nietverbindung kann nicht ohne aufwendige Hilfsmittel gelöst werden. Für eine Trennung der Werkstoffe müssen die Nieten, die Abdeckung und der Träger sauber voneinander abgetrennt werden.The known fastening method also makes recycling of the cover and the carrier much more difficult. The rivet connection cannot be released without expensive aids. To separate the materials, the rivets, the cover and the carrier must be cleanly separated from one another.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Airbag¬ modul zu schaffen, das in einfacher Weise an einer dafür vorgesehenen Stelle angebracht werden kann. Desweiteren soll eine Wiederverwertung der eingesetzten Werkstoffe durch eine leichte Demontage des Airbagmoduls ermöglicht werden.The invention is therefore based on the object of creating an airbag module which can be attached in a simple manner to a location provided for this purpose. Furthermore, recycling of the materials used should be made possible by easy removal of the airbag module.
Erfindungsgemäß wird das gemäß den kennzeichnenden Merkmalen des Anspruchs 1 erreicht.According to the invention this is achieved in accordance with the characterizing features of claim 1.
Bei einem Airbagmodul mit mindestens einem Gasgenerator, einer den Gasgenerator tragenden Baugruppe, einem Gassack und einer Abdeckung des Airbagmoduls, weist die Abdeckung Mittel zur Befestigung auf, die zumindest teilweise form¬ schlüssig mit der den Gasgenerator tragenden Baugruppe ver¬ bindbar sind. Eine solche Abdeckung kann einfach an der den Gasgenerator oder die Gasgeneratoren tragenden Baugrup¬ pe angebracht und auch wieder entfernt werden. Die Abdeckung weist vorzugsweise profilierte Abschnitte auf, denen in der den Gasgenerator tragenden Baugruppe Ausnehmungen zugeordnet sind, in denen die profilierten Ab¬ schnitte verriegelbar einschiebbar sind. Als Verriegelung können in die Ausnehmungen einschiebbare Profile vorgesehen sein.In the case of an airbag module with at least one gas generator, an assembly supporting the gas generator, an airbag and a cover of the airbag module, the cover has means for fastening which can be connected at least partially in a form-fitting manner to the assembly supporting the gas generator. Such a cover can simply be attached to the assembly carrying the gas generator or the gas generators and also removed again. The cover preferably has profiled sections, to which recesses are assigned in the assembly carrying the gas generator, in which recesses the profiled sections can be inserted in a lockable manner. Profiles that can be inserted into the recesses can be provided as a lock.
In einer Ausführungsform ist als Abdeckung eine Abdeckkappe vorgesehen, die an mindestens zwei gegenüberliegenden Seiten federnde Stege mit wulstartigen Verstärkungen auf¬ weist, denen in einem flachen Gasgeneratorträger Nuten zuge¬ ordnet sind, die einseitig ein dem Wulstquerschnitt angepa߬ tes Hohlprofil aufweisen und breiter als der jeweilige Steg sind und daß zur Verriegelung der Stege mit der den Gasgene¬ rator tragenden Baugruppe in die Nuten einschiebbare Profil¬ leisten vorgesehen sind, denen ein entsprechendes Hohlpro¬ fil in den Nuten zugeordnet ist. Die Stege sind vorzugswei¬ se in Form von Seitenwänden der Abdeckkappe vorgesehen.In one embodiment, a cover cap is provided as a cover, which has resilient webs with bead-like reinforcements on at least two opposite sides, to which grooves are assigned in a flat gas generator carrier, which have a hollow profile adapted to the bead cross section on one side and wider than that are respective webs and that for the locking of the webs with the module carrying the gas generator, insertable profile strips are provided, to which a corresponding hollow profile is assigned in the grooves. The webs are preferably provided in the form of side walls of the cover cap.
Als Baugruppe, die den Gasgenerator trägt, ist vorzugsweise ein plattenförmiger Gasgeneratorträger mit zwei an gegen¬ überliegenden Schmalseiten vorgesehenen U-förmigen Pro¬ filnuten angeordnet. Weiterhin sind zwei in die Profilnuten greifende federnde Stege der Abdeckkappe vorgesehen, wobei die U-Profile abschnittsweise wulstartige Verstärkungen auf¬ weisen, denen unter diese greifende wulstartige Verstärkun¬ gen an den Stegen zugeordnet sind. In einer Ausführungsform weisen die Profilleisten einseitig durchgehende wulstförmige Verstärkungen auf, die in Längs¬ richtung der Profilnuten in diese einschiebbar sind und denen wulstartige Verstärkungen in den Profilnuten zugeord¬ net sind.A plate-shaped gas generator support with two U-shaped profile grooves provided on opposite narrow sides is preferably arranged as an assembly that supports the gas generator. Furthermore, two resilient webs of the cover cap which reach into the profile grooves are provided, the U-profiles in sections having bead-like reinforcements to which bead-like reinforcements on the webs are assigned. In one embodiment, the profile strips have continuous bead-shaped reinforcements which can be pushed into the profile grooves in the longitudinal direction and to which bead-like reinforcements in the profile grooves are assigned.
In dieser letztgenannten Ausführungsform werden zwei gegen¬ überliegende Stege der Abdeckkappe in die Profilnuten einge¬ setzt. Wegen der federnd ausgebildeten Stege greifen die wulstartigen Verstärkungen der Stege hinter die wulstarti¬ gen Verstärkungen der Profilnuten nach Art eines Schnappver¬ schlusses. Zur Sicherung der Schnappverbindung werden anschließend die Profilleisten in Längsrichtung in die Profilnuten eingeschoben.In this last-mentioned embodiment, two opposite webs of the cover cap are inserted into the profile grooves. Because of the resilient webs, the bulge-like reinforcements of the webs engage behind the bulge-like reinforcements of the profile grooves in the manner of a snap lock. To secure the snap connection, the profile strips are then inserted lengthways into the profile grooves.
In einer weiteren Ausführungsform weisen die Nuten bzw. U-Profile im Bereich der abschnittsweise vorgesehenen wulstartigen Verstärkungen in ihrem Boden Durchbrüche auf. Im Abstand der Durchbrüche sind Profilelemente vorgesehen, die durch die Durchbrüche quer zum Nutverlauf in die Profil¬ nuten einschiebbar sind. Diese Profilelemente sichern die Verbindung zwischen der Abdeckkappe und dem Gasgeneratorträ¬ ger.In a further embodiment, the grooves or U-profiles have openings in their base in the region of the bead-like reinforcements provided in sections. At a distance from the openings, profile elements are provided which can be inserted into the profile grooves through the openings transverse to the groove profile. These profile elements secure the connection between the cover cap and the gas generator support.
In einer Ausführungsform sind die Profilelemente im Ab¬ stand der Durchbrüche an Sicherungsleisten vorgesehen. Die Profilelemente sind durch die Durchbrüche quer zu den Profi¬ lnuten in diese einschiebbar und zusammen mit den Sicherungsleisten in der eingeschobenen Stellung in Längs¬ richtung der Profilnuten verschiebbar. Zur Erzielung der Verschiebung in Längsrichtung sind die Profilelemente jeweils an einem Ende mit der Sicherungslei¬ ste verbunden und anschließend verlaufen die Profilelemente in einem Abstand zur Sicherungsleiste, wobei der Abstand mindestens der Dicke des Bodens der Profilnuten entspricht. Durch die Verschiebung der Profilelemente in Längsrichtung wird die Verbindung zwischen dem Gasgeneratorträger und der in dessen Profilnuten eingeschobenen Abdeckkappe gesichert.In one embodiment, the profile elements are provided on the securing strips at the spacing of the openings. The profile elements can be pushed into the profile grooves through the openings and can be moved together with the securing strips in the inserted position in the longitudinal direction of the profile grooves. To achieve the displacement in the longitudinal direction, the profile elements are each connected at one end to the securing strip and then the profile elements run at a distance from the securing strip, the distance corresponding at least to the thickness of the bottom of the profile grooves. By moving the profile elements in the longitudinal direction, the connection between the gas generator carrier and the cover cap inserted into its profile grooves is secured.
In einer anderen Ausführungsform weist der Gasgeneratorträ¬ ger an allen Schmalseiten Profilnuten mit Durchbrüchen im Boden der Profilnuten auf. Durch die Durchbrüche sind Pro¬ filelemente in die Profilnuten einschiebbar, die an einem Ring vorgesehen sind.In another embodiment, the gas generator carrier has profile grooves with openings in the bottom of the profile grooves on all narrow sides. Through the openings, profile elements can be inserted into the profile grooves, which are provided on a ring.
In einer weiteren Ausführungsform ist die Abdeckkappe an zwei gegenüberliegenden Seiten mittels Profilleisten mit dem Gasgeneratorträger verriegelbar und an zwei senkrecht zu diesen Seiten verlaufenden Seiten ist sie mittels Steck¬ verschlüssen mit dem Gasgeneratorträger verbunden.In a further embodiment, the cover cap can be locked on two opposite sides by means of profile strips with the gas generator support and on two sides running perpendicular to these sides it is connected to the gas generator support by means of plug-in closures.
Die Steckverschlüsse sind in einer Ausführungsform so ausge¬ staltet, daß an der Abdeckkappe Schnappelemente mit Lippen vorgesehen sind, denen am Gasgeneratorträger Schlitze mit plastisch verformbaren Stegen zugeordnet sind, wobei die Lippen eine größere Breite als die Schlitze bei unverform- ten Stegen aufweisen. In one embodiment, the plug-in closures are designed such that snap elements with lips are provided on the cover cap, to which slots with plastically deformable webs are assigned on the gas generator support, the lips having a greater width than the slots with undeformed webs.
Dieser erfindungsgemäße Airbagmodul weist den Vorteil auf, daß deren Abdeckung sowohl leicht zu montieren als auch leicht zu demontieren ist. Damit werden Fertigungskosten eingespart und eine Wiederverwertung des Materials des Airbags bei dessen Aussonderung wird ebenfalls leichter möglich.This airbag module according to the invention has the advantage that its cover is both easy to assemble and easy to disassemble. This saves manufacturing costs and makes it easier to recycle the airbag material when it is discarded.
In einer weiteren Ausgestaltung der Erfindung ist vorgese¬ hen, daß die Profilnuten des Gasgeneratorträgers in minde¬ stens einer Dimension eine Kontur aufweisen, die von der Geraden abweicht. Dadurch wird ein Herausrutschen der Profilleisten aus den Profilnuten in erhöhtem Maße verhin¬ dert.In a further embodiment of the invention it is provided that the profile grooves of the gas generator support have a contour in at least one dimension which deviates from the straight line. This prevents the profile strips from slipping out of the profile grooves to an increased extent.
Der Gasgeneratorträger ist vorzugsweise ein Druckguß- oder Spritzteil.The gas generator carrier is preferably a die-cast or injection molded part.
Die Erfindung soll in Ausführungsbeispielen anhand von Zeichnungen erläutert werden. Es zeigen:The invention will be explained in exemplary embodiments with reference to drawings. Show it:
Fig. 1: eine erste Ausführungsform des erfindungsgemäßen Airbagmoduls in einer Explosivdarstellung;1: a first embodiment of the airbag module according to the invention in an exploded view;
Fig. 2a: vergrößerte perspektivische Ansichten von bis 2c Ausschnitten des in Figur 1 dargestellten Trä¬ gers;2a: enlarged perspective views of sections up to 2c of the carrier shown in FIG. 1;
Fig. 3: eine geschnittene perspektivische Ansicht der ersten Ausführungsform des zusammengebauten Airbagmoduls; Fig. 4: eine zweite Ausführungsform des erfindungsgemäßen Airbagmodulsmoduls in einer Explosivdarstellung;3 shows a sectional perspective view of the first embodiment of the assembled airbag module; 4: a second embodiment of the airbag module module according to the invention in an exploded view;
Fig. 5: eine vergrößerte perspektivische Ansicht eines Ausschnitts des in Figur 4 dargestellten Trägers;5 shows an enlarged perspective view of a detail of the carrier shown in FIG. 4;
Fig. 6: eine geschnittene perspektivische Ansicht der zweiten Ausführungsform des zusammengebauten Airba¬ gmoduls;6: a sectional perspective view of the second embodiment of the assembled airbag module;
Fig. 7: eine perspektivische Ansicht eines Trägers einer dritten Ausführungsform des erfindungsgemäßen Gassackmoduls;7: a perspective view of a carrier of a third embodiment of the gas bag module according to the invention;
Fig. 8: eine perspektivische Ansicht eines Trägers einer vierten Ausführungsform des erfindungsgemäßen Gassackmoduls.8: a perspective view of a carrier of a fourth embodiment of the gas bag module according to the invention.
Das in Figur 1 dargestellte Airbagmodul weist einen Gasgene¬ rator 1 und einen gebrochen dargestellten Gassack 2 auf, die beide einem Gasgeneratorträger 3 zugeordnet sind. Der Gasgeneratorträger 3 besitzt auf zwei gegenüberliegenden Seiten je eine Profilnut 6. An den zwei gegenüberliegenden Seiten, die quer zu den Seiten mit den Profilnuten 6 lie¬ gen, weist der Gasgeneratorträger 3 je zwei Schlitze 5 auf, an deren einer Seite plastisch verformbare Stege 5a (Fig. 2a) vorgesehen sind. The airbag module shown in FIG. 1 has a gas generator 1 and a gas bag 2 shown broken, both of which are assigned to a gas generator carrier 3. The gas generator carrier 3 has a profile groove 6 on two opposite sides. On the two opposite sides, which lie transversely to the sides with the profile grooves 6, the gas generator carrier 3 has two slots 5, on one side of which plastically deformable webs 5a (Fig. 2a) are provided.
Dem Gasgeneratorträger 3 ist weiter eine Abdeckkappe 4 zuge¬ ordnet, die an zwei gegenüberliegenden Wänden jeweils zwei Steckelemente 9 aufweist, die den Schlitzen 5 des Gasgenera¬ torträgers 3 zugeordnet sind. Jedes Steckelement 9 ist mit einer Lippe 9a versehen.The gas generator carrier 3 is also assigned a cover cap 4, each of which has two plug-in elements 9 on two opposite walls, which are assigned to the slots 5 of the gas generator carrier 3. Each plug element 9 is provided with a lip 9a.
Die Abdeckung weist an ihren zwei Seitenwänden 10, die quer zu den Seiten mit den Steckelementen 9 liegen, je ein wulstformiges Profil 8 auf, welches je einer Profilnut 6 des Generatorträgers 3 zugeordnet ist.On its two side walls 10, which lie transversely to the sides with the plug-in elements 9, the cover has a bead-shaped profile 8, which is assigned to a profile groove 6 of the generator support 3.
Der in Figur 2a dargestellte Ausschnitt des Generatorträ¬ gers 3 zeigt die Profilnut 6 vergrößert. Diese weist eine Querschnittsform auf, die einem abgeflachten "O" entspricht, das oben offen ist, so daß die Profilnut hohl- profilartige Verbreiterungen 6a, 6b gegenüber der offenen Seite der Nut aufweist. Dabei entspricht die hohlprofilarti- ge Erweiterung 6a dem wulstförmigen Profil 8.The section of the generator carrier 3 shown in FIG. 2a shows the profile groove 6 enlarged. This has a cross-sectional shape which corresponds to a flattened "O" which is open at the top, so that the profile groove has hollow profile-like widenings 6a, 6b opposite the open side of the groove. The hollow profile-like extension 6a corresponds to the bead-shaped profile 8.
Für die Fixierung der Seitenwände 10 in der Profilnut 6, ist jeweils eine Profilleiste 7 vorgesehen, die im Quer¬ schnitt auf einer Seite eine wulstartige Verstärkung 7a und gegenüberliegend eine ebene Seite 7b aufweist. Die Profil¬ leiste 7 ist mit ihrer ebenen Seite 7b an die flache Seite des Profils 7 der Abdeckung 4 angrenzend in die Profilnut 6 einschiebbar. For fixing the side walls 10 in the profile groove 6, a profile strip 7 is provided in each case, which has a bead-like reinforcement 7a in cross section on one side and a flat side 7b on the opposite side. The profile bar 7 can be inserted with its flat side 7b into the profile groove 6 adjacent to the flat side of the profile 7 of the cover 4.
Die Montage der Abdeckkappe 4 erfolgt in der Weise, daß diese nach der Montage des Gasgenerators 1 und des Gas¬ sackes 2 auf dem Gasgeneratorträger 3 auf diesen so aufge¬ setzt wird, daß die Steckelemente 9 über den Schlitzen liegen und die Seitenwände 10 über den Profilnuten 6 lie¬ gen. Durch Andruck der Abdeckkappe 4 an den Gasgeneratorträ¬ ger 3 die Lippen 9a der Steckelemente 9 in die Schlitze 5 eingeführt. Die Stege 5a werden nach dem Einführen der Lippen 9a plastisch verformt. Da die Schlitze bei unverform- ten Stegen 5a schmaler sind als die Lippen 9a, ist die Abdeckkappe 4 formschlüssig mit dem Generatorträger 3 verbunden.The cover cap 4 is mounted in such a way that after the installation of the gas generator 1 and the gas bag 2 on the gas generator carrier 3, the latter is placed on the carrier 3 such that the plug elements 9 lie over the slots and the side walls 10 over the Profile grooves 6 lie. By pressing the cover cap 4 on the gas generator support 3, the lips 9a of the plug-in elements 9 are inserted into the slots 5. The webs 5a are plastically deformed after the insertion of the lips 9a. Since the slots are narrower than the lips 9a when the webs 5a are not deformed, the cover cap 4 is connected to the generator carrier 3 in a form-fitting manner.
Die Seitenwände 10 der Abdeckkappe 4 werden bei deren Andruck an den Gasgeneratorträger 3 elastisch nach außen gebogen, bis sie in die hohlprofilartigen Verbreiterungen 6a einrasten und mit ihrem wulstförmigen Profil 8 an diesen anliegen. Damit ist auch an diesen Seiten eine formschlüssi¬ ge Verbindung zwischen der Abdeckkappe 4 und dem Gasgenera¬ torträger 3 vorhanden. Zur Sicherung dieser formschlüssigen Verbindung werden anschließend in die Profilnuten 6 die Profilleisten 7 eingeschoben.The side walls 10 of the cover cap 4 are elastically bent outwards when they are pressed against the gas generator carrier 3 until they snap into the hollow profile-like widenings 6a and bear against them with their bead-shaped profile 8. A positive connection between the cover cap 4 and the gas generator carrier 3 is thus also present on these sides. To secure this positive connection, the profile strips 7 are then inserted into the profile grooves 6.
In Figur 3 ist das Gassackmodul in einer geschnittenen per¬ spektivischen Ansicht im zusammengebauten Zustand darge¬ stellt. Der Gasgenerator 1, der Gassack 2 und die Abdeckkap¬ pe 4 sind auf dem Gasgeneratorträger 3 angeordnet. Die wulstförmigen Profile 8 der Seitenwände 10 liegen an den hohlprofilartigen Verbreiterungen 6a an. Jede Profilleiste 7 liegt einerseits mit ihrer wulstartigen Verstärkung 7a an der hohlprofilartigen Verbreiterung 6b und andererseits an einer der Seitenwände 10 an. Damit ist es unmöglich, die Abdeckkappe 4 vom Gasgeneratorträger 3 abzuheben.In Figure 3, the gas bag module is shown in a cut perspective view in the assembled state. The gas generator 1, the gas bag 2 and the cover cap 4 are arranged on the gas generator support 3. The bead-shaped profiles 8 of the side walls 10 rest on the hollow profile-like widenings 6a. Each profile bar 7 rests on the one hand with its bead-like reinforcement 7a the hollow profile-like widening 6b and on the other hand on one of the side walls 10. This makes it impossible to lift the cover cap 4 off the gas generator support 3.
Die in Figur 4 dargestellte zweite Ausführungsform des erfindungsgemäßen Airbagmoduls weist wieder den Gasgenera¬ tor 1 und den gebrochen dargestellten Gassack 2 auf, die beide einem Gasgeneratorträger 13 zugeordnet sind. Dieser weist an seinen vier Seiten jeweils eine U-förmige Profil¬ nut 16 auf.The second embodiment of the airbag module according to the invention shown in FIG. 4 again has the gas generator 1 and the gas bag 2 shown broken, both of which are assigned to a gas generator carrier 13. This has a U-shaped profile groove 16 on each of its four sides.
Dem Gasgeneratorträger 13 ist weiter eine Abdeckkappe 14 zugeordnet. An den vier Seitenwänden 14a der Abdeckkappe 14 sind jeweils wulstförmige Profile 18 vorgesehen, die den Profilnuten 16 des Gasgeneratorträgers 13 zugeordnet sind.A cover cap 14 is also assigned to the gas generator carrier 13. On the four side walls 14a of the cap 14, bead-shaped profiles 18 are provided, which are assigned to the profile grooves 16 of the gas generator carrier 13.
Der in Figur 5 dargestellte Ausschnitt des Gasgeneratorträ¬ gers 13 zeigt die U-förmige Profilnut 16 vergrößert. Die Profilnut 16 besitzt an ihrer Unterseite in Richtung des in Figur 4 dargestellten Gasgenerators l in regelmäßigen Abständen Durchbrüche 12. In den Bereichen der Durchbrüche 12 weisen die Profilnuten 16 wulstartige Verstärkungen 15 auf. Diese Verstärkungen bewirken eine Verengung der U-för- igen Profilnut 16, so daß diese in diesen Bereichen einen ähnlichen Querschnitt wie die Profilnut 6 im ersten Ausfüh¬ rungsbeispiel aufweist.The section of the gas generator carrier 13 shown in FIG. 5 shows the U-shaped profile groove 16 enlarged. The profile groove 16 has openings 12 at regular intervals on its underside in the direction of the gas generator 1 shown in FIG. 4. The profile grooves 16 have bead-like reinforcements 15 in the areas of the openings 12. These reinforcements cause a narrowing of the U-shaped profile groove 16, so that in these areas it has a cross section similar to that of the profile groove 6 in the first exemplary embodiment.
Den Durchbrüchen 12 der Profilnut 16 sind Profilelemente 17, die auf einem Ring 11 angebracht sind, zugeordnet. Die Befestigung der Abdeckkappe 14 an dem Gasgeneratorträ¬ ger 13 ist in Figur 6 erkennbar. In Figur 6 ist das Gassack¬ modul in einer geschnittenen perspektivischen Ansicht im zu¬ sammengebauten Zustand dargestellt. Der Gasgenerator 1, der Gassack 2 und die Abdeckkappe 14 sind auf dem Gasgenerator¬ träger 13 angeordnet. Die wulstförmigen Profile 18 der Abdeckung 14 befinden sich in der Profilnut 16 des Gasgene¬ ratorträgers 13. In der Profilnut 16 befinden sich außerdem die auf dem Ring 11 angeordneten Profilelemente 17. Der Ring 11 kann durch unterschiedliche Maßnahmen in seiner Position gehalten werden. Das kann z. B. durch Kleben, durch Einrasten von nicht dargestellten Rastnasen in Löchern des Generatorträgers oder durch Verstemmen von Zapfen in Löchern im Ring erfolgen.The openings 12 of the profile groove 16 are associated with profile elements 17 which are attached to a ring 11. The attachment of the cover cap 14 to the gas generator support 13 can be seen in FIG. 6. 6 shows the gas bag module in a cut perspective view in the assembled state. The gas generator 1, the gas bag 2 and the cover cap 14 are arranged on the gas generator carrier 13. The bead-shaped profiles 18 of the cover 14 are located in the profile groove 16 of the gas generator carrier 13. In the profile groove 16 there are also the profile elements 17 arranged on the ring 11. The ring 11 can be held in its position by various measures. That can e.g. B. by gluing, by engaging not shown locking lugs in holes in the generator support or by caulking pins in holes in the ring.
In Figur 7 ist eine perspektivische Ansicht eines Gasgenera¬ torträgers 23 einer dritten Ausführungsform des erfindungs¬ gemäßen Airbagmoduls dargestellt. Der Gasgeneratorträger 23 weist an zwei sich gegenüberliegenden Seiten je eine Profil¬ nut 26 mit Durchbrüchen 22 auf, in deren Bereich die Profil¬ nut 26 wulstartige Verstärkungen 27 aufweist. Quer zu den Seiten mit Profilnuten 26 befinden sich auf jeder der zwei Seiten zwei Schlitze 25. Die Verbindung der nicht darge¬ stellten Abdeckkappe und die Anordnung der anderen Teile des Gassackmoduls sind entsprechend den vorangegangenen Aus¬ führungsformen ausgeführt. Den Schlitzen 25 sind Steckele¬ mente der Abdeckkappe zugeordnet. Den Profilnuten 26 sind Profile der Abdeckkappe zugeordnet. Der Unterschied zur Ausführungsform der Figuren 4 bis 6 besteht in der Sicherung der Verbindung zwischen der Abdeck¬ kappe und dem Gasgeneratorträger 23. Die Sicherung erfolgt mittels Sicherungsleisten 21, die Profilelemente 24 aufwei¬ sen. Die Profilelemente 24 sind an einem Ende mit der Sicherungsleiste 21 verbunden, während sie im übrigen Bereich im Abstand zur Sicherungsleiste 21 verlaufen. Dieser Abstand entspricht mindestens der Dicke des Bodens der Profilnut 26.FIG. 7 shows a perspective view of a gas generator carrier 23 of a third embodiment of the airbag module according to the invention. The gas generator support 23 has a profile groove 26 with openings 22 on two opposite sides, in the area of which the profile groove 26 has bead-like reinforcements 27. Transversely to the sides with profile grooves 26 there are two slots 25 on each of the two sides. The connection of the cover cap (not shown) and the arrangement of the other parts of the gas bag module are carried out in accordance with the preceding embodiments. The slots 25 are assigned plug-in elements of the cover cap. Profiles of the cover cap are assigned to the profile grooves 26. The difference from the embodiment in FIGS. 4 to 6 is the securing of the connection between the cover cap and the gas generator support 23. The securing is carried out by means of securing strips 21 which have profile elements 24. The profile elements 24 are connected at one end to the fuse strip 21, while in the remaining area they run at a distance from the fuse strip 21. This distance corresponds at least to the thickness of the bottom of the profile groove 26.
Zur Sicherung der Verbindung zwischen der Abdeckkappe und dem Gasgeneratorträger 23 werden die Profilelemente 24 durch die Durchbrüche 22 in die Profilnuten 26 eingeführt. Anschließend werden die Sicherungsleisten in Längsrichtung der Profilnuten 26 verschoben, wodurch sich dann der Boden der Profilnut 26 zwischen den Profilelementen 24 und der Sicherungsleiste 21 erstreckt.To secure the connection between the cover cap and the gas generator support 23, the profile elements 24 are inserted through the openings 22 into the profile grooves 26. The securing strips are then moved in the longitudinal direction of the profile grooves 26, as a result of which the bottom of the profile groove 26 then extends between the profile elements 24 and the securing strip 21.
In einer vierten Ausführungsform des erfindungsge äßen - Airbagmoduls ist in Figur 8 eine perspektivische Ansicht eines Gasgeneratorträgers 33 dargestellt. Der Gasgenerator¬ träger 33 ist an zwei sich gegenüberliegenden Seiten mit je einer Profilnut 36 versehen, die in Abständen an ihren Sei¬ tenwänden wulstartige Verstärkungen 34 aufweisen. Quer zu den Seiten mit den Profilnuten 36 befinden sich auf jeder der zwei Seiten zwei Schlitze 35. Die Verbindung der nicht dargestellten Abdeckung und die Anordnung der anderen Teile des Gassackmoduls ist entsprechend den vorangegangenen Ausführungsformen ausgeführt. Den Schlitzen 35 sind Stecke¬ lemente der Abdeckung zugeordnet. Weiter sind der Profil¬ nut 36 Profile der Abdeckung zugeordnet. Die Profile der Abdeckung .werden mit einer Profilleiste 37, die in die Profilnut 36 des Gasgeneratorträgers 33 eingeschoben wird, fixiert.In a fourth embodiment of the airbag module according to the invention, a perspective view of a gas generator carrier 33 is shown in FIG. The gas generator support 33 is provided on two opposite sides each with a profile groove 36, which have bead-like reinforcements 34 on their side walls at intervals. Transversely to the sides with the profile grooves 36 there are two slots 35 on each of the two sides. The connection of the cover, not shown, and the arrangement of the other parts of the gas bag module is carried out in accordance with the previous embodiments. Plug-in elements of the cover are assigned to the slots 35. Furthermore, 36 profiles of the cover are assigned to the profile groove. The profiles of the Cover. Are fixed with a profile strip 37, which is inserted into the profile groove 36 of the gas generator support 33.
Aus den Figuren 7 und 8 ist erkennbar, daß die Profilnuten 26, 36 gewölbt sind. Dadurch werden die Sicherungsleiste 21 bzw. die Profilleiste 37 beim Einschieben ebenfalls elastisch verformt und sind so in erhöhtem Maßen vor dem Herausrutschen gesichert. It can be seen from FIGS. 7 and 8 that the profile grooves 26, 36 are curved. As a result, the safety bar 21 and the profile bar 37 are also elastically deformed when inserted and are thus secured to an increased extent against slipping out.

Claims

Ansprüche Expectations
1. Airbagmodul mit mindestens einem Gasgenerator, einer den Gasgenerator tragenden Baugruppe, einem Gassack und einer Abdeckung des Airbagmoduls,1. airbag module with at least one gas generator, an assembly supporting the gas generator, an airbag and a cover of the airbag module,
dadurch gekennzeichnet,characterized,
daß die Abdeckung (4; 14) Mittel (8; 9; 18) zur Befestigung aufweist, die zumindest teilweise formschlüssig mit der den Gasgenerator (1) tragen¬ den Baugruppe (3; 13; 23; 33) verbindbar sind.that the cover (4; 14) has means (8; 9; 18) for fastening which can be connected at least partially in a form-fitting manner to the assembly (3; 13; 23; 33) carrying the gas generator (1).
Airbagmodul nach Anspruch l, dadurch gekennzeich¬ net, daß die Abdeckung (4, 14) profilierte Abschnit¬ te (8, 18) aufweist, denen in der den Gasgenerator tragenden Baugruppe (3, 13, 23, 33) Ausnehmungen (6, 16, 26, 36) zugeordnet sind, in denen die profi¬ lierten Abschnitte verriegelbar einschiebbar sind.Airbag module according to Claim 1, characterized in that the cover (4, 14) has profiled sections (8, 18) which have recesses (6, 16) in the assembly (3, 13, 23, 33) carrying the gas generator , 26, 36) in which the profiled sections can be inserted in a lockable manner.
Airbagmodul nach mindestens einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß als Verriege¬ lung in die Ausnehmungen (6, 16, 26, 36) einschieb¬ bare Profile (7, 17, 24, 37) vorgesehen sind. Airbagmodul nach mindestens einem der vorhergehen¬ den Ansprüche, dadurch gekennzeichnet, daß als Abdeckung eine Abdeckkappe (4, 14) vorgesehen ist, die an mindestens zwei gegenüberliegenden Seiten federnde Stege mit wulstartigen Verstärkungen (8, 18) aufweist, denen in einem flachen Gasgenerator¬ träger (3) Nuten (6) zugeordnet sind, die einseitig ein dem Querschnitt der wulstartigen Verstärkungen angepaßtes Hohlprofil (6a) aufweisen und breiter als der jeweilige Steg sind und daß zur Verriege¬ lung der Stege mit der den Gasgenerator tragenden Baugruppe in die Nuten (6) einschiebbare Profillei¬ sten (7) vorgesehen sind, denen ein entsprechendes Hohlprofil (6b) in den Nuten (6) zugeordnet ist.Airbag module according to at least one of the preceding claims, characterized in that profiles (7, 17, 24, 37) which can be inserted into the recesses (6, 16, 26, 36) are provided as locking devices. Airbag module according to at least one of the preceding claims, characterized in that a cover cap (4, 14) is provided as the cover, which has resilient webs with bead-like reinforcements (8, 18) on at least two opposite sides, which in a flat gas generator Carrier (3) grooves (6) are assigned, which on one side have a hollow profile (6a) adapted to the cross-section of the bead-like reinforcements and are wider than the respective web and that for locking the webs with the assembly carrying the gas generator into the grooves ( 6) insertable profile strips (7) are provided, to which a corresponding hollow profile (6b) in the grooves (6) is assigned.
Airbagmodul nach mindestens einem der vorhergehen¬ den Ansprüche, dadurch gekennzeichnet, daß als Baugruppe, die den Gasgenerator trägt, ein platten- för iger Gasgeneratorträger (13) mit zwei an gegen¬ überliegenden Seiten vorgesehenen U-förmigen Pro¬ filnuten (16) angeordnet ist, daß zwei in diese Pro¬ filnuten greifende federnde Stege (14a) der Abdeck¬ kappe (14) vorgesehen sind, wobei die Profilnuten (16) abschnittsweise wulstartige Verstärkungen (15) aufweisen, denen unter diese greifende wulstartige Verstärkungen (18) an den Stegen (14a) zugeordnet sind. Airbagmodul nach mindestens einem der vorhergehen¬ den Ansprüche, dadurch gekennzeichnet, daß die Profilleisten (7, 37) einseitig durchgehende wulst- förmige Verstärkungen (7a) aufweisen, daß sie in Längsrichtung der Profilnuten (6, 36) in diese ein¬ schiebbar sind und daß den Profilleisten (7, 37) wulstartige Verstärkungen (34) in den Profilnuten zugeordnet sind.Airbag module according to at least one of the preceding claims, characterized in that a plate-shaped gas generator support (13) with two U-shaped profile grooves (16) provided on opposite sides is arranged as an assembly which carries the gas generator that two resilient webs (14a) of the cover cap (14) which extend into these profile grooves are provided, the profile grooves (16) having, in sections, bead-like reinforcements (15), to which underneath, bead-like reinforcements (18) on the webs (14a) are assigned. Airbag module according to at least one of the preceding claims, characterized in that the profile strips (7, 37) have continuous bead-shaped reinforcements (7a) on one side, that they can be pushed into the profile grooves (6, 36) in the longitudinal direction thereof and that the profile strips (7, 37) bead-like reinforcements (34) are assigned in the profile grooves.
7. Airbagmodul nach mindestens einem der vorhergehen¬ den Ansprüche, dadurch gekennzeichnet, daß die Profilnuten (16, 26) im Bereich der abschnittsweise vorgesehenen wulstartigen Verstärkungen (15, 27) in ihrem Boden Durchbrüche (12, 22) aufweisen, durch die quer zum Nutverlauf Profilelemente (17, 24) einschiebbar sind.7. Airbag module according to at least one of the preceding claims, characterized in that the profile grooves (16, 26) in the region of the bead-like reinforcements (15, 27) provided in sections have openings (12, 22) in their base, through which transverse to Groove profile elements (17, 24) can be inserted.
Airbagmodul nach Anspruch 7, dadurch gekennzeich¬ net, daß die Profilelemente (24) im Abstand der Durchbrüche (22) an Sicherungsleisten (21) vorgese¬ hen sind, daß die Profilelemente (24) durch die Durchbrüche (22) quer zu den Profilnuten (26) in diese einschiebbar sind, und die Sicherungsleisten (21) in der eingeschobenen Stellung in Längsrich¬ tung der Profilnuten (26) verschiebbar sind. Airbag module according to claim 7, characterized in that the profile elements (24) are provided on securing strips (21) at a distance from the openings (22), that the profile elements (24) through the openings (22) transversely to the profile grooves ( 26) can be inserted therein, and the securing strips (21) can be moved in the inserted position in the longitudinal direction of the profile grooves (26).
Airbagmodul nach Anspruch 8, dadurch gekennzeich¬ net, daß die Profilelemente (24) jeweils an einem Ende mit der Sicherungsleiste verbunden sind und an¬ schließend die Profilelemente (24) im Abstand zur Sicherungsleiste verlaufen, wobei der Abstand minde¬ stens der Dicke des Bodens der Profilnuten ent¬ spricht.Airbag module according to claim 8, characterized in that the profile elements (24) are each connected at one end to the safety bar and then the profile elements (24) run at a distance from the safety bar, the distance being at least the thickness of the base corresponds to the profile grooves.
10. Airbagmodul nach mindestens einem der vorhergehen¬ den Ansprüche, dadurch gekennzeichnet, daß der Gasgeneratorträger (13) an seinen Schmalseiten umlaufende Profilnuten (16) mit Durchbrüchen (12) im Boden der Profilnuten aufweist und daß durch die Durchbrüche (1) Profilelemente (17) einschiebbar sind, die an einem Ring (11) vorgesehen sind.10. Airbag module according to at least one of the preceding claims, characterized in that the gas generator carrier (13) on its narrow sides has circumferential profile grooves (16) with openings (12) in the bottom of the profile grooves and that through the openings (1) profile elements (17th ) can be inserted, which are provided on a ring (11).
11. Airbagmodul nach Anspruch 1 bis 9, dadurch gekenn¬ zeichnet, daß die Abdeckkappe (4) an zwei gegenüber¬ liegenden Seiten mittels Profilleisten (7) mit dem Gasgeneratorträger (3) verriegelbar ist und daß sie an zwei senkrecht zu diesen Seiten verlaufenden Seiten mittels Steckverschlüssen (5,9) mit dem Generatorträger verbunden ist. 11. Airbag module according to claim 1 to 9, characterized gekenn¬ characterized in that the cap (4) on two opposite sides by means of profile strips (7) with the gas generator support (3) can be locked and that they run on two sides perpendicular to these sides is connected to the generator support by means of plug-in closures (5,9).
12. Airbagmodul nach mindestens einem der vorhergehen¬ den Ansprüche, dadurch gekennzeichnet, daß die Steckverschlüsse so ausgestaltet sind, daß an der Abdeckkappe (4) Steckelemente (9) mit Lippen (9a) vorgesehen sind, denen am Gasgeneratorträger (3) Schlitze (5) mit plastisch verformbaren Stegen (5a) zugeordnet sind, wobei die Lippen eine größere Breite als die Schlitze (5) bei unverformten Stegen (5a) aufweisen.12. Airbag module according to at least one of the preceding claims, characterized in that the plug closures are designed in such a way that plug elements (9) with lips (9a) are provided on the cover cap (4), with slots (5) on the gas generator carrier (3) ) with plastically deformable webs (5a), the lips having a greater width than the slots (5) in the case of undeformed webs (5a).
13. Airbagmodul nach mindestens einem der vorhergehen¬ den Ansprüche, dadurch gekennzeichnet, daß die Profilnuten (6) des Gasgeneratorträgers (3) in mindestens einer Dimension eine Kontur aufweisen, die von der Geraden abweicht.13. Airbag module according to at least one of the preceding claims, characterized in that the profile grooves (6) of the gas generator support (3) have a contour in at least one dimension which deviates from the straight line.
14. Airbagmodul nach mindestens einem der vorhergehen¬ den Ansprüche, dadurch gekennzeichnet, daß der Gasgeneratorträger (3) ein Druckguß- oder Spritz¬ teil ist. 14. Airbag module according to at least one of the preceding claims, characterized in that the gas generator carrier (3) is a die-cast or injection-molded part.
EP96910899A 1995-04-26 1996-04-09 Air-bag module Expired - Lifetime EP0824420B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19516255 1995-04-26
DE19516255A DE19516255C2 (en) 1995-04-26 1995-04-26 Airbag module
PCT/DE1996/000682 WO1996033888A1 (en) 1995-04-26 1996-04-09 Air-bag module

Publications (2)

Publication Number Publication Date
EP0824420A1 true EP0824420A1 (en) 1998-02-25
EP0824420B1 EP0824420B1 (en) 1999-10-27

Family

ID=7760990

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (7)

Country Link
US (1) US6053528A (en)
EP (1) EP0824420B1 (en)
JP (1) JP3150704B2 (en)
BR (1) BR9608037A (en)
DE (1) DE19516255C2 (en)
ES (1) ES2140840T3 (en)
WO (1) WO1996033888A1 (en)

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Also Published As

Publication number Publication date
DE19516255C2 (en) 2000-09-21
DE19516255A1 (en) 1996-10-31
US6053528A (en) 2000-04-25
JPH11504288A (en) 1999-04-20
ES2140840T3 (en) 2000-03-01
JP3150704B2 (en) 2001-03-26
BR9608037A (en) 1999-01-12
WO1996033888A1 (en) 1996-10-31
EP0824420B1 (en) 1999-10-27

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